Nikon D5100 vs Pentax K100D

Lets look closer at the Nikon D5100 and Pentax K100D, both Entry-Level DSLR digital cameras by manufacturers Nikon and Pentax. There is a sizable difference between the sensor resolutions of the D5100 (16MP) and K100D (6MP) but they feature the exact same sensor dimensions (APS-C).

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The D5100 was brought out 4 years later than the K100D and that is quite a significant difference as far as tech is concerned. Both cameras come with the identical body type (Compact SLR).

Before diving in to a full comparison, below is a brief introduction of how the D5100 scores against the K100D with respect to portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Nikon D5100 & Pentax K100D. The entire galleries are viewable at Nikon D5100 Gallery & Pentax K100D Gallery.

If you're intending to lug around your camera often, you're going to have to factor in its weight and size. The Nikon D5100 offers outside measurements of 128mm x 97mm x 79mm (5.0" x 3.8" x 3.1") accompanied by a weight of 560 grams (1.23 lbs) whilst the Pentax K100D has specifications of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") with a weight of 660 grams (1.46 lbs).

Check out the Nikon D5100 and Pentax K100D in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary based on the lens you choose at that time. Following is the front view measurements comparison of the D5100 versus the K100D.

Factoring in size and weight, the portability rating of the D5100 and K100D is 66 and 64 respectively.

Often, it can be tough to envision the difference between sensor measurements purely by reviewing technical specs. The photograph here may offer you a far better sense of the sensor sizing in the D5100 and K100D.

As you have seen, the two cameras have got the exact same sensor measurements but not the same MP. You can expect to see the Nikon D5100 to offer more detail having its extra 10MP. Greater resolution can also enable you to crop images much more aggressively. The fresher D5100 will have an edge with regard to sensor technology.